tree c3c47e9ad2132264349c145e2e85852d138396f4
parent e752747b98ae64ff0d1484a3b1b812fd2cafed53
author Beata Michalska <b.michalska@samsung.com> 1425477769 +0100
committer Inki Dae <inki.dae@samsung.com> 1428892780 +0900

drm/exynos/ipp: Validate buffer enqueue requests

As for now there is no validation of incoming buffer
enqueue request as far as the gem buffers are being
concerned. This might lead to some undesired cases
when the driver tries to operate on invalid buffers
(wiht no valid gem object handle i.e.).
Add some basic checks to rule out those potential issues.

Signed-off-by: Beata Michalska <b.michalska@samsung.com>
[mszyprow: rebased onto v4.0-rc1 and adapted to recent ipp changes]
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>